Ball-point pen



FIG. 1 is a top plan view of a ball-point pen showing my new design;

FIG. 2 is a right side elevational view, the left side view being a mirror image thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view thereof with the writing point extended, the left side view being a mirror image thereof;and

FIG. 5 is a front elevational view thereof. 

The ornamental design for a ball point pen, as shown and described. 